<span>The correct answere for this question is A - the three major types of volcanoes are shiel volcanoes, cinder volcanoes and composite volcanoes. Two other tyypes of volcano are the lava dome volcano, and the Rhyolite Caldera complex (this type is not common, but are the most dangerous and explosive - Yellowstone is an example of this type of volcano).</span>
B. the housing styles of the Baka people of the Congo
While a majority of Jewish migrants have come from Europe, more than three-quarters of those alive today have moved to the Middle East-North Africa region, almost entirely to Israel.
Answer:
D
Question:
You observed three different star clusters and found that the main-sequence turnoff stars in cluster 1 had spectral type A, the main-sequence turnoff stars in cluster 2 had spectral type B, and the main-sequence turnoff stars in cluster 3 had spectral type G. Which star cluster is the oldest?
A.) cluster 1
B.) It is impossible to determine their ages given only the spectral types
C.) cluster 2
D.) cluster 3
Explanation:
the answer to this question is option D, Cluster 3
the farther a star cluster gets away from where they are were born the easier it is to estimate how old they are based of the spectral type they are coded with using the HR diagram
Also, the spectral sequence O, B, A, F, G, K, M is the sequence of temperatures where beginning with letter O being the Hottest and letter M being the coolest. Younger Star clusters are hotter while cooler star clusters are older